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Finding the Fourth Proportional to 654,189.55, 902,649.23 and 382,204.91

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Solution

The fourth proportional to 654,189.55, 902,649.23 and 382,204.91 is: 527,365.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,189.55 : 902,649.23 = 382,204.91 : x
  2. Step 2: Convert to fraction form
    654,189.55/902,649.23 = 382,204.91/x
  3. Step 3: Cross multiply
    654,189.55x = 902,649.23 × 382,204.91
  4. Step 4: Simplify right side
    654,189.55x = 344,996,968,059.32
  5. Step 5: Solve for x
    x = 344,996,968,059.32/654,189.55
  6. Step 6: Final answer
    x = 527,365.45

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.